Table 1.
Comparison of baseline characteristics of students in the intervention and control groups
| |
Intervention |
Control |
|
||||||
|---|---|---|---|---|---|---|---|---|---|
|
N = 770 (42.4%) |
N = 1,044 (57.6%) |
|
|||||||
| N | % | μ | SD* | N | % | μ | SD* | p** | |
| Age |
735 |
|
16.8 |
1.0 |
998 |
|
16.9 |
1.0 |
0.03 |
| Sex |
0.002 |
||||||||
| Male |
630 |
81.8 |
|
|
908 |
87.0 |
|
|
|
| Female |
140 |
18.2 |
|
|
136 |
13.0 |
|
|
|
| Area of training |
0.09 |
||||||||
| BPW£ |
472 |
62.3 |
|
|
681 |
65.6 |
|
|
|
| Catering industry |
171 |
22.6 |
|
|
236 |
22.7 |
|
|
|
| Personal services |
115 |
15.2 |
|
|
121 |
11.7 |
|
|
|
| Smoking status |
0.25 |
||||||||
| Non-smoker |
334 |
43.4 |
|
|
434 |
41.6 |
|
|
|
| Smoker |
386 |
50.1 |
|
|
557 |
53.4 |
|
|
|
| Ex-smoker | 50 | 6.5 | 53 | 5.1 | |||||
£ BPW = building and public works.
*SD = standard deviation **p-value <0.05. Data are mean ± SD. BPW: building and public works.